
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X10R is a single acting, push type (spring return) pen-size mini cylinder with direct front-cover mounting (M4×0.7 thread). A single air port drives the push stroke on a Ø8mm bore, 10mm stroke; the return spring resets the rod when air is released.
The AirTAC PSBR8X10R is a single-acting push pen cylinder that extends via one M5x0.8 air port and retracts automatically via an internal spring. It supplies 18.7 N of net push at 0.5 MPa. The direct M4x0.7 front-cover mounting thread bolts straight to your fixture, saving space in tight assemblies.
Built with a SUS316L stainless barrel and a slim 8 mm body, it handles light end-of-arm tooling easily. The return spring ensures the rod fails safe to the home position on air loss. A fixed TPU bumper cushions the stroke ends, but with real tooling mass at higher speeds you should meter-out the exhaust or add an external shock absorber.
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X10R |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø8 mm |
| Rod diameter | Ø4 mm |
| Stroke | 10 mm |
| Acting type | Single acting, push type (spring return) |
| Front-mount thread | M4×0.7 |
| Port size | M5×0.8 |
|---|---|
| Operating pressure | 0.2 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Return | Return spring (push by air) |
| Max standard stroke | Up to 60 mm |
The spring holds the rod retracted; applying air pushes the rod out, and removing air lets the spring return it. Front cover carries the mounting thread (M4×0.7); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 18.7 N |
| 0.7 MPa (max) | 28.7 N |
These are usable push forces after the return spring is subtracted, from the AirTAC single-acting thrust table. Minimum operating pressure is set by the spring, so this model needs at least the lower pressure shown to move.
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 8 | Bore size in mm. |
| ×10 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| U / R | Back cover: U 90° side inlet or R axial inlet (bore-dependent). |
Mounting: direct front-cover thread (M4×0.7). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Pushes small stamped parts out of a die using the direct front thread. The spring safely pulls the 4 mm rod back when air drops.
Shifts lightweight electronic panels along a conveyor. The slim 8 mm body fits between tight guide rails without clashing.
Overrides a mechanical latch to free a workpiece. The SUS316L barrel resists moisture in washdown machining areas.
This 8 mm bore yields 18.7 N net push at 0.5 MPa. Stepping down to a 6 mm bore gives 10.6 N, while stepping up to a 10 mm bore provides 29.8 N. Plan for a safe working load of about 11 N, which is roughly 60 percent of the 0.5 MPa rating, to account for seal friction. It lifts about 1 kg vertically with a sane 2:1 margin.
The spring sets a 0.2 MPa minimum pressure before motion begins. The thin 4 mm rod handles coaxial thrust well, but add an external linear bearing for off-axis loads. Confirm the R axial inlet and front M4x0.7 thread match your jig before ordering.
Quick checklist
It provides 18.7 N of net push at 0.5 MPa and 28.7 N at the 0.7 MPa maximum. Because an internal spring drives the return, a 0.2 MPa minimum pressure is required before the rod extends.
It mounts directly via an M4x0.7 thread on the front cover, eliminating separate brackets. The barrel is made of SUS316L stainless steel for corrosion resistance in compact jigs.
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